Q: How to service and repair the exterior antenna of the audio and visual system on Scion xB?
A: Start service and repair of the audio and visual exterior antenna by removing first the roof headlining assembly followed by the instrument panel sub-assembly. The first step entails disconnecting the connectors from the W/HOLDER ANTENNA ASSY followed by removal of its 12 clamps and bolt. Extract the W/HOLDER ANTENNA ASSY right after disconnecting all the W/HOLDER ANTENNA ASSY connectors. You should reinstall the roof headlining assembly as the last step.